<template>
  <div class="Son">
    <h3>我是Son组件(子),{{car.name}}---{{car.price}}</h3>
  </div>
</template>

<script>
import { inject } from 'vue';
export default {
  name: "Son",
  setup() {
        let car = inject('car')
        return {
            car
        }
  }
};
</script>
 <style>
 .Son{
   background-color: orange;
   padding: 10px;
 }
 </style>